During RNA processing (including both mRNA and non-coding RNAs), is the end of 3'UTR always polyadenylated after cleavage?
I could not find the answer to my question in the Wikipedia entry for polyadenylation.
If a recent reference could be provided, that will be great. I've done quite a bit search and hasn't found a good source yet.
Some background to this question: we are developing bioinformatics tools to predict potential cleavage sites, we need to understand this problem better in order to design a suitable algorithm